/* //清除默认样式 */
body,ul,ol,p,h1,h2,h3,h4,h5,h6,dl,dd,input,textarea,select,figure{margin: 0;padding: 0;}
body{font-size:12px;font-family: Arial;line-height: 1 !important; }
img{vertical-align: top;border: none;}
a{text-decoration: none;}
textarea{resize: none;}
ul{list-style: none;}
input,select,textarea{border: none;outline: none;}
address,em, i {
    font-style: normal;
}
strong,b{
    font-weight: normal;
}
h1,h2,h3,h4,h5,h6 {  
    line-height: 1; 
    font-size:100%;   
    font-weight:bold;   
} 
table{   
    border-collapse:collapse;   
    border-spacing:0;   
} 
button{
    outline: none;
    border:none;
    padding: 0;
}

/**清浮动**/
.clearfix:after{content: "";display: block;clear: both;}
.clearfix{zoom:1;}
 
.fl{
    float: left;
}
.fr{
    float: right;
}
.show{
    display: block;
}
.hide{
    display: none;
}
/* //扩展点击区域 */
.extend { position: relative;} 
.extend::before { 
    content: ''; 
    position: absolute; 
    top: -10px;
    right: -10px; 
    bottom: -10px;
    left: -10px; 
}